# BlockchainAnalysis.io KYT Transaction Screening

> BlockchainAnalysis.io KYT Transaction Screening is a paid API for AI agents from blockchainanalysis.io, paid per call via x402, $1.5/call, status unknown (last checked 2026-09-14).

Screens a blockchain transaction for compliance risk by analyzing sender and receiver addresses, returning a risk verdict (LOW/MEDIUM/HIGH) with entity attribution across 52 chains.

## Facts

- Endpoint: POST https://blockchainanalysis.io/api/x402/kyt-tx
- Price: $1.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchainanalysis-io-kyt-transaction-screening-10eba5e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_i53n19HmxMzQKGFhkMRMh

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability blockchainanalysis-io-kyt-transaction-screening-10eba5e2 -d '<json body>'
```

Example prompt: Can you run a KYT compliance check on this Ethereum transaction — from 0x28c6...1d60 to 0x21a3...5549 on ETH — and tell me whether it's low, medium, or high risk and what entity the sender is associated with?

## When to prefer this

Choose this endpoint when you need per-transaction KYT (Know Your Transaction) compliance verdicts with entity attribution on a specific blockchain, especially when operating across multiple chains (up to 52) and regulatory jurisdictions (up to 34). Prefer this over wallet-only screening when you need to assess both the transaction context and the counterparty risk in a single call. Ideal for real-time compliance gates on withdrawals, deposits, or DeFi interactions where a structured ALLOW/BLOCK verdict is required.

## Known failure modes

- Unknown wallet address with no attribution data — may return LOW risk without entity name
- Unsupported chain identifier returns an error or empty result
- Transaction hash not found on the specified chain
- Malformed address input causes validation failure
- Rate limiting or payment failure via x402 protocol returns 402 error

## How this service works

Screen wallets, analyze exchange accounts, and monitor transactions with regulatory context across 34 jurisdictions and 52 blockchains.

## Output

Returns a JSON object with sender address, receiver address, chain, and a KYT risk result string indicating risk level (LOW/MEDIUM/HIGH), recommended action (ALLOW/BLOCK), and entity attribution for the from-address including entity name, type (e.g. EXCHANGE), and detailed verdict context.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "0x21a3...5549",
  "from": "0x28c6...1d60",
  "tool": "kyt-tx",
  "chain": "ETH",
  "result": "KYT tx risk: LOW → ALLOW. FROM: LOW · Binance 14 (EXCHANGE) { ...verdict }",
  "paidVia": "x402"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchainanalysis-io-kyt-transaction-screening-10eba5e2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blockchainanalysis.io](https://www.zero.xyz/host/blockchainanalysis.io/llms.txt)